By Rick Nauert PhDSenior News Editor
Reviewed by John M. Grohol, Psy.D. on January 17, 2014

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A new study finds that heavy drinking in college may worsen post-traumatic stress disorder (PTSD) symptoms over time.

Researchers estimate that 9 percent of college student have PTSD. Investigators discovered that college students who have symptoms of post-traumatic stress disorder (PTSD) are likely to drink more alcohol than peers without it.